Judgment_paragraph 34 · National Farmers' Union v Secrétariat général du gouvernement (C-241/01)

34According to settled case-law, a decision adopted by the Community institutions which has not been challenged by its addressee within the time-limit laid down by the fifth paragraph of Article 230 EC becomes definitive as against that person (see, inter alia, Commission v Belgium, cited above, paragraphs 20 to 24; Commission v Greece, cited above, paragraphs 9 and 10; TWD Textilwerke Deggendorf, paragraph 13, and Case C-239/99 Nachi Europe [2001] ECR I-1197, paragraph 29). Such a rule is based in particular on the consideration that the periods within which legal proceedings must be brought are intended to ensure legal certainty by preventing Community measures which produce legal effects from being called in question indefinitely (Wiljo, paragraph 19).